Describes procedures for the verification of volumetric glassware using water or mercury as the working substance, and gives recommended practices for the use of such glassware. Factors affecting accuracy are dealt with in some detail; e.g. temperature in respect of both the vessel and the liquid, the cleanness of glass surfaces, the reading of volumes and, for vessels calibrated to deliver, delivery time. Specific attention is given to the correct use of volumetric flasks, pipettes and burettes. Appendices detail methods for cleaning volumetric glassware, a leakage test for burette stopcocks, recommended stopcock lubricants, correction tables for use in calibration, and a list of reference literature including relevant Australian and British Standards.